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A064780 as a simple table

n a(n)
0 2
1 5
2 13
3 34
4 94
5 255
6 693
7 1884
8 5123
9 13923
10 37848
11 102880
12 279659
13 760191
14 2066413
15 5617093
16 15268842
17 41505017
18 112822331
19 306682895
20 833650539
21 2266097112
22 6159890600
23 16744318683
24 45515777208
25 123724710091

[2,5,13,34,94,255,693,1884,5123,13923,37848,
 102880,279659,760191,2066413,5617093,15268842,
 41505017,112822331,306682895,833650539,2266097112,
 6159890600,16744318683,45515777208,123724710091]

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Last modified April 24 20:08 EDT 2024. Contains 371963 sequences. (Running on oeis4.)